A photovoltaic power generation greenhouse with adjustable and uniform sunlight

Abstract

The invention discloses a photovoltaic generation greenhouse with adjustable solar illumination and uniform illumination. The photovoltaic generation greenhouse comprises a greenhouse body, wherein a photovoltaic generation roof and a diffusing glass roof cover the greenhouse; a light intensity detection unit array, a decision making unit and a communication system are arranged in the greenhouse; a plurality of photovoltaic assemblies cover the sunny slope of the photovoltaic generation roof and are uniformly distributed; the euphotic area of the photovoltaic assemblies can be adjusted, and diffusing glass is arranged on the sunny slope without photovoltaic assemblies, so that sunlight can pass through; the light intensity detection unit array is connected with the decision making unit through the communication system and is used for supplying greenhouse illumination data to the decision making unit, and the decision making unit is connected to the photovoltaic assemblies through the communication system and is used for judging the greenhouse illumination data and sending an instruction to the photovoltaic assemblies, so as to adjust the euphotic area of the photovoltaic assemblies and adjust the illumination in the greenhouse. According to the photovoltaic generation greenhouse, photovoltaic generation equipment is arranged on the greenhouse, so that the illumination in the greenhouse can be adjusted, and an obvious shadow of the photovoltaic generation equipment is difficult to form in the greenhouse.

Description

technical field [0001] The invention relates to agricultural facilities, in particular to a photovoltaic power generation greenhouse with adjustable sunlight intensity and uniform illumination. Background technique [0002] Greenhouse technology is an important foundation for the establishment and promotion of modern facility agriculture technology. Since greenhouse production utilizes natural sunlight energy, it can fully integrate various technologies such as rain shelter cultivation, water-saving irrigation, formula fertilization, and standardized production, greatly improving the output, quality and added value of products, especially suitable for winter and winter. Production under harsh climatic conditions makes full use of natural light energy to produce high-quality off-season vegetables; traditional greenhouse roofs are mostly made of transparent greenhouse film or ordinary glass, and light can pass through this transparent material to facilitate the growth of plant...

AI Technical Summary

Problems solved by technology

[0003] There are generally two types of existing photovoltaic greenhouses. One is to lay opaque or semi-transparent solar cells on the roof of the greenhouse. This structure will prevent light from entering the greenhouse, resulting in insufficient light in the greenhouse and affecting the growth of plants. Yield and quality; the other is to intermittently arrange solar panels and light-transmitting materials on the roof of the greenhouse, so that the light can be transmitted through the light-transmitting part into the greenhouse for the light energy needed for plant growth

However, this layout will produce light and dark shadows in the greenhouse. When the sun moves in the sky, these shadows will also move with it, causing periodic changes in the light intensity of the plants in the greenhouse, which is likely to cause stress in the plants. reflect, thereby affecting the normal growth and development of plants

[0004] The invention of application number 200810241339.5 relates to a solar photovoltaic greenhouse for cultivating tomatoes. The roof uses solar photovoltaic panels and transparent glass to form a strip structure to achieve 50% light transmission and power generation. Because its structure still produces shadows in the greenhouse, It will cause the plants to receive uneven light and affect the growth of plants.

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